Apparatus for photographically recording documents or the like



June 12, 1951 F. BUDDE 2,557,026

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.APPARATUS FOR PHOTOGRAPHICALLY RECORDING DOCUMENTS 0R TEE LIKE Filed May lO, 1945 9 Sl'ieeliS--Sheekl 5 June 12, 1951 2,557,026

F. BUDDE APPARATUS FOR PHOTOGRAPHICALLY RECORDING DOCUMENTS OR THE LIKE Filed May 10, 1945 9 Sheets-Sheet 6 INVENTOR. /C/QEER/cA///f BY wfwfwm June 12, 1951 F BUDDE 2,557,026

APPARATUS FOR PHTOGRAPHICALLY RECORDING DOCUMENTS 0R THE LIKE Filed May lO, 1945 9 Sheets-Sheet 7 June 12, 1951 F. BUDDE 2,557,026 APPARATUS EOE PHoToGRAPHTcALLY RECORDING DOCUMENTS 0R THE LIKE 9 Sheets-Sheet 8 Filed May l0, 1945 TVI June l2, 1951 DOCUMENTS 0R THE LIKE Filed May lO, 1945 F. BUDDE APPARATUS FOR PHOTOGRAFHICALLY RECORDING 9 Sheets-Sheet 9 Patented June l2, 1951 APPARATUS FOR PH OTOGRAPHICALLY RE- CORDING DOCUMENTS OR THE LIKE Frederick Budde, Brooklyn,

mesne assignments, to Chicago, Ill., a corpor N. Y., assignor, by

Bell & Howell Company, ation of Illinois Application May 10, 1945, Serial No. 593,029

3 Claims.

rI'his invention relates to photographic apparatus, more particularly for recording by photography discrete documents, drawings, and such matter.

Objects of this invention are improved photographic apparatus for recording by photography both the front and reverse sides of documents of the character of checks, recording one side of documents of the character of ledger sheets, eliminating all extraneous images, such as those caused by document holding or guiding devices, utilizing frictional driving means so as to eliminate sprocket holes with their attendant film wastage, providing two distinct reduction ratios so as to provide for maximum film economy in both double and single face photography, automatically spacing the film between images to improve film economy, improving the adaptability or" the machine as a whole for use in conjunction with currently manufactured endorsing machines and the like, providing two complete independent daylight loading type cameras so .as to facilitate extraction of less than a complete roll of exposed film, providing maximum accessibility of the cameras to facilitate loading of lm with minimum distance between supply and winding rolls to reduce film losses, equipping the apparatus with automatic visual indicating means to indicate the amount of film on the supply spool and audio means to indicate breakage of film or failure of lm drive or a predetermined' safe minimum supply of illm on the supply spool providing means to advance the lm independently of its document control, providing com-plete accessibility of all the parts of the device requiring service, providing a physical form and feeding characteristics conducive to eilicient high speed operation, providing an external appearance to conform with conventional. office furniture, eliminating the problem presented by lack of stitlness in thin and soft paper stock by feeding the document vertically downwardly through the viewing region or photographic field providing guide means for guiding documents or" different sizes to the feeding roller and directly normal to the axis of the feeding roller, providing means for continuously operating the docunent feeding roller and for operating the camera under control of the document and through mechanism driven directly by the motor, providing means for preventing the operation of the apparatus when the camera is not properly positioned, providing means for adjusting the brightness of the illumination to provide for uniform density of images on the film of various colors of a inked stamps on various colors of papers, controlling the length of document Within the photographic field, varying the length of exposure of the document from one edge to the other to provide for uniform density of an image on the film transversely of the lm, providing a receiving basket to receive and stack documents of various widths and lengths, providing improved means for preventing bending of the part of the document in the photographic eld, providing improved means for energizing the illuminating means to ensure illumination of the document as it enters and leaves the photographic eld, etc.

Other objects of this invention will appear from the following description taken in connection with the drawings, in which:

Figure l is a vertical longitudinal section taken thro-ugh the apparatus to the rear of the feeding mechanism showing the feeding mechanism, camera clutch and the lm driving means in the cam-era;

Figure 2 is a horizontal section on the line 2 2 of Figure 1;

Figure 3 is a detail view of a camera shutter and its operating mechanism;

Figure 4 is a vertical front to rear section through the cabinet on line 4 4 of Figure l;

Figure 5 is a sectional View on the line 5 5 of Figure 4 showing the counter mechanism in side view;

Figure 6 is a Vertical front to rear section on the line 5 6 of Figure 2;

Figure 7 is a view of a short section of lm on which front and obverse sides of the faces of checks have been recorded;

Figure 8 is a side view of the document feeding, conveying and stacking means;

Figure 9 is an enlarged view of the upper lefthand mechanism shown in Figure l;

Figure 10 is an illumination or image density control indexing means;

Figure ll is a rear elevational View oi"V the interior of the camera;

Figure 12 is a horizontal section of the line l2 |2 of Figure 1l;

Figure 13 is a front elevational view of the interior of the camera;

Figure 14 is a horizontal View on the line M I 4 of Figure l1; and

Figure 15 shows diagrammatic arrangement of the wiring and the electrical controls.

My invention will be described with reference to a preferred embodiment thereof illustrated in the drawings.

The apparatus shown is housed within a cabitaken generally net A, which as appears from the various figures, lis of horizontally elongated rectangular form, and which is preferably suitably finished as office furniture, and the left-hand end wall of the cabinet, as viewed by the operator, is provided with an opening to receive a camera C. The horizontally disposed top wall of the cabinet is provided with an opening into which projects a top feed and guide plate D on which are mounted an on-and-oif switch S, a cycle button CB, and an illumination or image density control button IC, and its cooperating sector IS, Figures 2, 6, 10 and 15.

The mechanism housed within the cabinet A, is supported on a frame member F, Figure 1,

which includes a central horizontal main frame member 2, which may be suitably supported on the walls of the cabinet. Mounted thereon are vertical upstanding frame members 3 on which are journalled various shafts and from which depend frame members 4 :on which are journalled other shafts, and from which are suspended carrier and stacker mechanisms, later referred to. It is optional whether the frame is supported on the cabinet or whether the frame rests on the floor and supports the cabinet.

As disclosed in Figure 8, the top guide plate kD is provided with av document guide and feed table 5, which is downwardly inclined and predominately horizontal and over which sheets` may correspondingly sequentially be fed edgewise into the cabinet and between a main driven feeding roller E and idler rollers 'I and 8, which project through a guide plate S. As the document passes under the idler roller 8, it engages and operates a switch controlling arm I0. It is then fed along a guide plate II between an invfeed driven roller I2 and an idler roller I3 and engages and operates a switch arm I4 and thence is fed across the photographic field PF between an out-feed driven roller I5 and an idler roller I6. it passes between reflectors I'I and I8, and the document may be illuminated on the obverse and front sides by long light bulbs 20 and 2I provided with reectors 22 and 23 for directing the light toward both faces of the document.-

The sheet feeding means, within the cabinet Y and comprising the-rollers 6, 1 and 8, the guides 9 and II, and the rollers I2, I3, I5 and I6, and the sheet feed guide 5 are disposed in the region of the right hand end of the cabinet as viewed by the operator, i. e., the end of the cabinet opposite that at which the camera C is disposed,

and the downwardly inclined predominately horizontal sheet feed guide is directed transversely of the longitudinal extent of the cabinet and has 'its discharge end disposed intermediate the long sides of the cabinet, and sheets may be sequentially fed edgewise thereover in a downwardly inclined predominately horizontal direction into and intermediate the long sides of the cabinet, this direction of feed being desirable and particularly convenient in hand feeding from a stack of sheets. adapted to receive sheets from the sheet feed guide and sequentially feed them edgewse, and is disposed intermediate the long sides of the cabinet and is directed transversely of the longitudinal extent of the cabinet, and comprisesl an upper feed portion, formed bythe rollers I ands and the guide plate 9, which provides a curved sheet path and is adapted to receive sheets from the sheet guide 5 in a downwardly inclined predominately horizontal direction and As the document passes through this field,

The sheet feeding means isY feed them downwardly in a vertical plane intermediate and disposed in correspondence with the long cabinet sides, and a lower feeding portiony formed by the guide plate II and the rollers i2, i3, I5 and I5, which is adapted to receive sheets from the upper feeding portion and to feed them downwardly in this vertical plane past the photographic field PF, within the cabinet, the path of the sheets being indicated by the arrows in Figure 8.

The reflectors II and I3 are horizontally directed and are arranged in opposed converging relation and on opposite sides of the photographic eldV PF and are directedtoward the end of the cabinet at which the camera C is carried, the camera being adapted to receive images reflected by the reflectors for the photographic recording of the sheets or documents fed through the apparatus.

By reason of the arrangement above described, the machine may, as shown, be arranged in compact and convenient form within and on a cabinet conforming in size and shape with a usual elongated rectangular office desk, the longitudinal extent of the cabinet providing suiiicientY .length of optical path between the reiiectors II which the document is fed, so as to continue the Y movement of the document in a straight line, and to provide another section inclined at a suitable angle to the horizontal onto which the document is fed, and from which it is delivered into a receiving basket RB. Certain of these rollers are mounted on shafts journalled on the frames 4, and other rollers are mounted on shafts journalled in frame members 4a, which are adjustably connected on the frame members 4 by means of slot and pin connections by means of which the inclination of the inclined section of the conveyor may be adjusted, and suitable Vmeans may be provided for locking the frame members 4a in adjusted position.

Suitable means such as Ashown at 26, Figure 4, may be provided to hold the carrier 24 under suitable tension.

lThe receiving basket RB preferably comprises a right and left half, each of which includes a side flange 21, a bottom flange 28, and a front flange 2S, and spaced from the lower side of the bottom ange 28, a strap 3G which passes through slots in the legs of a U-shaped member 3|, enclosing a supporting shaft 32, non-rotatably supported on members 33 pivoted on the frame members 4a, and which may be adjusted and locked in adjusted position by means of a slot and cooperating locking screw as indicated at 34.

The U-shaped member 3l is provided with a thumb screw 35, which bears against the rod 32 and holds receiving basket halves in adjusted position.

By means of the adjustable features just described the halves ofthe basket Vmay be moved toward each other or separated in accordance with the width of the document, and the halves may be slid forward with respect to the supporting rod 32 to accommodate the longer documents. and in the case of still longer documents the members 33 may be swung clockwise to position the front flanges 29 farther forwardly ahead of the delivery end of the conveyor.

The main feeding roller Ii is of relatively large diameter and is preferably provided with three grooves Figures 2, 8 and 9, into which project the ends of the switch arms i9, which may be three in number, but in any case one switch arm is provided and located at the right-hand end of the main feeding roller 6, so that the document regardless of its width will engage a switch arm IIJ, when it is held in contact as it is fed into the machine, with the right-hand side of the slot indicated at the left of Figure 2.

rEhe driven rollers I?. are preferably arranged in pairs so as to provide slots for the switch arms I4 in alignment with the grooves in the main cylinder 6.

The idler rollers 'r'. 8 and I6 are also arranged in pairs, each pair being mounted on arms 37 (see also Figure l) which are provided with hubs rotatable on shafts supported in the frame members 3, and means may be provided to lock the shafts in adjusted rotated position. Coil springs surrounding these shafts are connected to the arms 3i supporting the rollers and to collars 33, which are adjustably mounted on the shafts.

The source of power for driving the mechanism may be a motor M (Figure 1) suitably supported on the bottom shelf 3S of the cabinet. The shaft of the motory is provided through a belt 6i) drives a large pulley 4I, see also Figure to which is connected a small pulley 42 over which passes a belt 43 which passes over a pulley i4 to which is connected another pulley over which passes a belt /55 extending over a pulley connected to the camera shaft 45.

Connected to the pulley #It is a main gear 4l, which meshes with a gear 48 connected to the shaft on which the rollers I2 are mounted, and which in turn meshes with a gear 49 attached to the shaft on which the main feeding roller 6 is mounted. Also meshing with the gear 4'! is a gear i! mounted on the shaft on which the rollers I 5 are mounted. 0n the inner side of the frame member shaft which through an intermediate geardrives a gear 52 connected on the shaft on which the driving roller of the conveyor is mounted.

The switch arms Iii and It, Figures 6 and 8, are mounted on shafts supported in the frame members 3. These arms control the microswitch 53 for controlling the operation of the consecutive counter, the microswitch 5t for controlling the operation of the light bulbs, and the microswitch 55 for controlling the operation of the camera clutch.

Mounted on the shaft to which the arm i@ is attached is a lever 5S provided at each end with an adjustable screw 51, which can be locked in adjusted position. One of the screws 5'! bears against the arm 58 which operates the microswitch 53, and the other bears against the arm 58 which operates the microswitch 5d. As a document rocks the arm ID, it closes the microswitches 53 and counter and the illuminating means.

The consecutive counter 6I, Figures 4 and 5, is operated by the plunger of the solenoid 60 through suitable mechanisms disclosed. The

with a pulley which 3 is a gear 5I mounted on said latter 54 to operate the consecutive construction is such that the counter is stepped by a spring BI.

'6 ahead upon energization of the solenoid by an actuating pawl which is moved into retracted position as the rearward edge of the card passes the arm I0. The usual means provided for resetting counters projects through a slot in the top plate D.

The switch operating arm I4 is provided with an angular extension, extending below the in-feed rollers I2 and I3, to the edge of the photographic held to give correct timing to the camera and illuminating means for photographing the rear portion of the document. This arm I4 is mounted on a shaft suitably journalled in the frame members 3, and on which is mounted an arm 62' which carries an adjustable set screw 51 which bears against the arm 58 of the microswitch 55, controlling the operation of the clutch. Mounted on the arm 62 is a rod 63 which passes through the end of the arm 55 and bears against the arm 58 associated with the microswitch 54. The function of this rod 63 is to keep the light circuit closed after the rear edge of the document has passed the arm IB and to keep it closed as long as the camera clutch is engaged.

The microswitch 55, Figure 6, controls the circuit through a solenoid 54, Figure 2, which operates a clutch lever 65 suitably pivoted on the frame of the machine to engage the clutch B6 to connect the clutch shaft 46 to a shaft 61. This latter shaft is provided with a sprocket over which passes a chain belt 68 which passes over a sprocket mounted on a shaft 69 which projects into the camera opening in the cabinet and is provided with a clutch element 'IB for engagement by a clutch element II on the main drive shaft 12, Figure 11, of the camera when the camera is properly positioned in the opening in the cabinet.

The element 'I3 of the clutch 66, which is slidably and non-rotatably supported on the shaft 61, is spring-pressed toward the other element of the clutch (i6 by coil spring 14, the end of which as shown in Figure 1 bears against a collar 'I5 which is adjustable on the shaft for the purpose of adjusting the clutch.

The camera C, Figures 11, 12, 13 and 14, comprises a casing which consists of a central partition 'I6 on which the various elements of the camera are mounted, and which includes a side wall Il surrounding this partition providing front and rear compartments disclosed in Figures 13 and 11 respectively. The front compartment houses the lm, and the rear compartment the driving mechanism, etc., and the compartments are provided with hinged doors as indicated at 11a and 11b, Figure 121.

Mounted on the central partition '16 of the camera is a plate 18, which, together with the partition l5, provides a sl-ot receiving an extension 'I9 on the main frame for the purpose of supporting the camera. rIhe end of the extension 'I9 is provided with a notch with which cooperates a locking pawl suitably supported on the partition l5 and spring pressed into locking position The locking pawl 8i! can be withdrawn from the notch by means of a key 32 located exteriorly of the camera casing.

As the camera is placed in position, the clutch element 'II is engaged with the clutch element 'I to drivingly connect these shafts. The shaft 12, Figure 1l, is provided with a worm 83, which operates a Worm wheel 84 mounted on a shaft 85 which is journalled in and projects through the partition I6, and on the other end of which, Figure 13, is mounted a roller 86 on which the nlm is exposed. Secured on the shaft 85 adjacent the gear 84 is a pulley 89 over which passes Va spring belt 88 which passes 'over a pulley 89 connected to a shaft 90 which is journalled in and extends through the partition 15 and has mounted thereon the film take-up spool 9|, Figure 13.

The lm, Figure 13, is carried on a supply spool 95 suitably mounted on the partition 15 and passes over an idler roller 96 and thence over a driven roller 94, the roller 86, a driven roller 93, and a tension roller 91 onto the take-up spool 9|. The rollers 94 and 93 are driven from the roller 85 through gears, as shown in Figures 12 and `13.

Cooperating with and pressing on the lm of the supply spool 95, Figure 13, is a roller 98 carried by an arm 99 connected to a shaft |00 which extends through the 'partition 16 and on its other end, Figure 11, carries a lever |I which extends through a slot in the camera casing as shown in Figures 11 and 13 into cooperative relation with an indicating scale |02, Figure 13, to indicate the supply of iilm on the supply spool v95. This lever |0| is drawn toward the right,

Figure 11, by a spring |03 to hold the roller 98 in contact with the film on the supply spool 95.'

The lower end of the lever I0! is provided with an adjustable screw |04 which can be locked in position and which bears upon an arm |05 of a normally open microswitch |06 which controls a circuit to the buzzer |01, Figure 15. This operates to energize the buzzer when the supplyY of film on the supply spool has been reduced to a certain predetermined amount.

The lever IOI, Figure 1l, may also be operated by means of a lever |08 which in turn may b e operated by an arm |09 through an adjustable set screw |I0. The arm |99 is mounted on a shaft III, which extends through the partition 13 and carries an arm II2, Figure 13, on which the tension roller 91 is supported. The arm |09 is normally pulled counter-clockwise by a spring |I3, Figure 1l, which moves the arm IIZ and the roller 91 toward the right, Figure '13, in case of film breakage.

Mounted on the outer face of the inner wall of the camera casing, Figures 11 and 13, is a lens block II4 which is removably secured on the casing in order that lenses of different foci may be used for different photographic reductions. In the case where the camera is used for photographing the front and obverse sides of the document a lens of a reducing power of 30 to 1 is employed, and in the case of photographing one side of large documents a reduction of 18 to 1 is required.

For the purpose of operating the lm at the right speed when a lens of 30 to 1 is employed, the camera shaft 46, Figure 1, is driven by the belt 45 and the pulleys over which it is trained for the purpose of driving the lm at the proper speed. When a lens of the reduction of 18 to 1 is employed, the shaft 46 is driven by a belt from a pulley 44' over a smaller pulley ||5 mounted on the shaft 46.

As disclosed in Figure 11, the inner end Wall of the camera casing is provided with a pair of contacts IIS connected to'the terminals of the microswitch |96 and which are adapted, whenV the camera casing is in proper position in the machine, to engage contacts carried by the frame of the machine which are connected to the circuit wires leading to the buzzer |01, Figure 15. The camera casing also carries anadjustable screw H8 which when the camera casing is in proper position in the machine, closes the motor circuit through a microswitch |I9 at one point, Figure 15, so that the circuit of the motor can be closed to operate the machine.

The illumination and density control button IC controls a rheostat ||9', Figure 15, in the lighting circuit to provide for uniform density of the image on the lm. In order that this control may be predetermined, the scale or sector IS, Figure 10, is provided with colored segments as indicated, and arranged in the order shown to adjust the amount of illumination. in

accordance with the color of the matter photo-V graphed. For example, for a white document the pointer of the button IC would be adjusted over the white segment; for a yellow document over the yellow segment, etc.

The mirrors I1 and I8, Figures 2, 6 and 8, are located in a horizontal plane and arranged at an angle of 45 or thereabouts and are suitably supported on the main frame with their meeting ends located slightly to the right of the right-hand end of the document feed and guide slot, Figure 2. Disposed in front of each mirror and suitably supported on the left-hand frame member 3 of the machine, Figure 6, are transversely extending shields |20 and I2I, which may be adjusted toward and away from each other to control the width and position. of the slits formed by the shields and to provide slits of greater width toward the outer ends of the mirrors to increase the length of exposure of the left-hand portion of the document so as to obtain a uniform density of the image transversely of the lm. The shields |20 and |2| may be brought into contact with each other on one side of the document, namely, the side corresponding to the back side of the document,

to block off reiiection of light from this side of the document when it is desired to photograph only the front face or side of the document. The corresponding lamp may also be removed, if desired.

The camera shutter is constituted by one end of a lever |25, Figures 2 and 3, suitably pivoted on the frame of the machine on a threaded pivot stud |21 and pressed toward the lens opening by a spring |20 interposed between the head of the stud and the lever |23. The lever is actuated from the clutch fork lever 55 through a link |29, a pivoted bell crank |30 and a link I3I as the clutch is engaged and disengaged.

Circuits Figure 15 discloses a circuit diagram showing the circuits and various electrical devices diagrammatically.

After the camera has been loaded, it is placed and latched in position in the machine. This closes the microswitch I I9 which electrically connects posts 2 and 3 of the panel board which is shown as comprising a series of strips carrying posts and 3, posts 2 and 4, posts 5, 1, 9, II, I3, I5 and I1, posts 6, 8, I0, I2, I4, I6 and I8, and posts I9 and 20. Posts I and 6 are to the lines from the main line plug. Y

rIhe toggle switch IS' is now closed and connects the post 4, which is connected through the microswitch |I9 to one of the main lines Y 9 position, then the machine circuit will be open in the microswitch IIS and will not be completed upon operation of the toggle switch S.

The machine is now cycled to advance the film by pressing the cycle button CB, Figure 15. The circuit controlled by the cycle button may be traced from the post I2 which is electrically connected to the supply post 6 through one of the posts of the microswitch 55, see also Figure 6, which controls the clutch through the button CB and then through the other post of the microswitch to the post 20, which is electrically connected to the post I9, and from thence across the clutch solenoid 64, see also Figure 2, and thence to the post II, which is electrically connected to the post in the main circuit controlled by the toggle switch S. The circuit of the motor is closed over posts I 1 and I8. This causes the feeding cylinders to rotate and the camera mechanism to operate and advance the film.

'I'he lamp circuit extends from post I3, Figure 15, across the microswitch 54, see also Figure 6, to the lamps or lights 20 and 2| in parallel, so that either light may be removed and the other energized. The other line of this circuit extends to the rheostat I I9 of the illumination and density control button IC and from thence to the post I4 which is electrically connected to the power supply post 6.

The circuit for the solenoid 60, Figure 15, of the consecutive counter may be traced from post 9 across the solenoid to the microswitch 53, see also Figure 6, and thence to post I0.

'I'he circuit for the primary coil |30 of the transformer extends from the post 8 across the primary coil |30 of the transformer to the post 1.

'I'he buzzer |01 is connected in one branch of the circuit of the secondary coil 3| of the transformer to a spring pressed contact member |33, and the other line of the secondary coil of the transformer is connected to another similar spring pressed contact member |34 which contact members are suitably supported on the frame of the machine and are adapted to be engaged by the fixed contact elements H6, Figure 11, on the inner wall of the camera to which the camera microswitch |06 is electrically connected. This microswitch is normally open and is adapted to be closed when there is a breakage of film or when the film is not loaded properly or when the amount of film supply on the supply spool has reached a predetermined minimum.

While I have described my invention with particularity with reference to a preferred embodiment illustrated, it is to be understood that this has been done for purposes of disclosure only and is not to be considered limiting and that I reserve the right to all such changes as fall within the principles of this invention and the scope of the appended claims.

I claim:

1. In a photographic apparatus, the combination of a camera, means for feeding a document through the photographic field of the camera, means for illuminating said document as it passes through said eld, a motor for driving said feeding means, an electromagnetic camera clutch for driving the mechanism of the camera from said motor, a switch controlled by the forward edge of a document as it is fed toward said field for energizing said illuminating means, a second switch controlled by the forward edge of said l0 document as it is moved closer to the photographic field to engage said clutch, and means for holding said first-mentioned switch closed until said second-mentioned switch is opened.

2. In a photographic apparatus, the combination of a camera, means for feeding a document through the photographic field of the camera, means for illuminating said document as it passes through said eld, a motor for driving said feeding means, a camera clutch for driving the mechanism of the camera from said motor, a switch controlled by the forward edge of a document as it is fed toward said field for energizing said illuminating means, a second switch controlled by the forward edge of said document as it is moved closer to the photographic field to control the engagement of said clutch and a connection between said switches whereby the first-mentioned switch will be maintained in illuminating means energizing position while said second switch is in clutch engaged position.

3. In a photographic apparatus, the combination of a camera, means for feeding a document through the photographic field of the camera, means for illuminating said document as it passes through said field, a motor for driving said feeding means, a camera clutch for driving the mechanism of the camera from said motor, an arm operated by the forward edge of a document as it is fed toward said eld, a switch closed by said arm for energizing said illuminating means, a second arm operated by the forward edge of said document as it is moved closer to the photographic field to engage said clutch, and a connection between said second-mentioned arm and said first-mentioned arm for holding said switch closed while said second arm is in clutch engaged position, said second-mentioned arm being provided with an extended document engaging surface and terminating at the edge of the photographic eld whereby said clutch will be engaged prior to the entry of the forward edge of the document into the photographic field and whereby said clutch will be maintained engaged and said illuminating means energized until the rear edge of the document enters the photographic field.

FREDERICK BUDDE.

REFERENCES CITED The following references are of record ln the file of this patent:

UNITED STATES PATENTS Number Name Date 1,752,648 Matthews Apr. 1, 1930 1,806,763 McCarthy May 26, 1931 1,919,433 Hutchings July 25, 1933 1,919,957 Lyman et al July 25, 1933 1,957,889 Hopkins et al. May 8, 1934 1,966,348 Hughey July 10, 1934 2,001,598 Caps May 14, 1935 2,005,370 Hughey June 18, 1935 2,166,419 ONeill July 18, 1939 2,177,135 Fassel Oct. 24, 1939 2,201,009 Oiler May 14, 1940 2,217,120 Liebman Oct. 8, 1940 2,251,570 Hessert Aug. 5, 1941 2,292,825 Dilks Aug. 11, 1942 2,364,188 Bryce Dec. 5, 1944 2,367,673 Fassel Jan. 23, 1945 2,403,711 Egan July 9, 1946 

